free
adj, fre*er fre*est 1 : not bound or confined by force <upon opening the skull a considerable amount of blood is noted -H. G. Armstrong> 2 a (1) : not united with, attached to, combined with, or mixed with something else <a surface of a bodily part> (2) : having the bare axon exposed in tissue <a nerve ending> b : not chemically combined < oxygen> < acids> c : not permanently attached but able to move about <a electron in a metal> 3 : having all living connections severed before removal to another site <a graft> <research … in flap transfers -B. R. Alford> .
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